Hello fellow TrueNAS-ians!
I have a question about how I should physically connect my drives for best performance. I attached two pictures, one with the drive list and the other with the vdev setup.
I currently have 10 drives (not counting the mSATA bootdrive):
- 2 SSDs are mirrored together as a Metadata VDev
- I have 3 mirrored VDevs for my main storage
- 1 drive is a Spare
- All the drives above are SATA
- The newest addition is a 10Tb SAS drive. I plan on making this one my new spare, and shifting the others around so that the smallest and oldest drive comes out of the system.
And I have 13 places I can plug them in:
5 motherboard Sata ports
4 ports on HBA_A
4 ports of HBA_B
My question is, what is the best way to plug all these drives in?
Should I fill the motherboard first and then the HBA? Or is the HBA faster?
Should mirrored pairs be connected on a similar interface or should they be split up?
Should the SAS drive be connected to HBA_A by itself since it is SAS, and then I connect 4 Sata drives to HBA_B? Or is it ok to mix SAS and Sata on the same 4 port splitter cable?
Is there any benefit to connecting the 2 SSDs to the HBA vs the motherboard?
Is it better to split the mirrors across different controllers to share the load, or does that introduce extra overhead?
Thanks for you suggestions!
I have a question about how I should physically connect my drives for best performance. I attached two pictures, one with the drive list and the other with the vdev setup.
I currently have 10 drives (not counting the mSATA bootdrive):
- 2 SSDs are mirrored together as a Metadata VDev
- I have 3 mirrored VDevs for my main storage
- 1 drive is a Spare
- All the drives above are SATA
- The newest addition is a 10Tb SAS drive. I plan on making this one my new spare, and shifting the others around so that the smallest and oldest drive comes out of the system.
And I have 13 places I can plug them in:
5 motherboard Sata ports
4 ports on HBA_A
4 ports of HBA_B
My question is, what is the best way to plug all these drives in?
Should I fill the motherboard first and then the HBA? Or is the HBA faster?
Should mirrored pairs be connected on a similar interface or should they be split up?
Should the SAS drive be connected to HBA_A by itself since it is SAS, and then I connect 4 Sata drives to HBA_B? Or is it ok to mix SAS and Sata on the same 4 port splitter cable?
Is there any benefit to connecting the 2 SSDs to the HBA vs the motherboard?
Is it better to split the mirrors across different controllers to share the load, or does that introduce extra overhead?
Thanks for you suggestions!
